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  <script>
    // console.log(a);
    // {
    //   console.log(a);
    //   // a()
    //   a = 20
    //   console.log(a);

    //   function a() { console.log(3); }
    //   console.log(a);

    //   a = 30
    //   console.log(a);

    // }
    // console.log(a);
  let a = 66
  a===1? console.log(11): a===2 ?console.log(22) : a===3 ? console.log(333) : console.log(1234567890);

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